The microwave-assisted and ethanol extraction were used to extract the flavonoids from the leaves of Orychragmus violaceus,and the flavonoids were checked and determined by spectrophotometry.The results showed that content of the total flavanone in Orychragmus violaceus leaves was 0.380 7 mg/ml and the rate of recovery was 97.79%.This method was a purely physical process and had not any pollution,and it was an ideal way to extract the flavanone from Orychragmus violaceus leaves.
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